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  2. Null character - Wikipedia

    en.wikipedia.org/wiki/Null_character

    Today the character has much more significance in the programming language C and its derivatives and in many data formats, where it serves as a reserved character used to signify the end of a string, [6] often called a null-terminated string. [7]

  3. C0 and C1 control codes - Wikipedia

    en.wikipedia.org/wiki/C0_and_C1_control_codes

    In 1973, ECMA-35 and ISO 2022 [18] attempted to define a method so an 8-bit "extended ASCII" code could be converted to a corresponding 7-bit code, and vice versa. [19] In a 7-bit environment, the Shift Out would change the meaning of the 96 bytes 0x20 through 0x7F [a] [21] (i.e. all but the C0 control codes), to be the characters that an 8-bit environment would print if it used the same code ...

  4. Rational data type - Wikipedia

    en.wikipedia.org/wiki/Rational_data_type

    A variable or value of that type is usually represented as a fraction m/n where m and n are two integer numbers, either with a fixed or arbitrary precision.Depending on the language, the denominator n may be constrained to be non-zero, and the two numbers may be kept in reduced form (without any common divisors except 1).

  5. "Hello, World!" program - Wikipedia

    en.wikipedia.org/wiki/"Hello,_World!"_program

    Another notable example is the Rust language, whose management system automatically inserts a "Hello, World" program when creating new projects. A "Hello, World!" message being displayed through long-exposure light painting with a moving strip of light-emitting diodes (LEDs) Some languages change the function of the "Hello, World!"

  6. Enumerator polynomial - Wikipedia

    en.wikipedia.org/wiki/Enumerator_polynomial

    where i ranges from 0 to n. The distance enumerator polynomial is (;,) = = and when C is linear this is equal to the weight enumerator. The outer distribution of C is the 2 n-by-n+1 matrix B with rows indexed by elements of GF(2) n and columns indexed by integers 0...n, and entries

  7. Operators in C and C++ - Wikipedia

    en.wikipedia.org/wiki/Operators_in_C_and_C++

    For example, (a > 0 and not flag) and (a > 0 && !flag) specify the same behavior. As another example, the bitand keyword may be used to replace not only the bitwise-and operator but also the address-of operator, and it can be used to specify reference types (e.g., int bitand ref = n).

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  9. C23 (C standard revision) - Wikipedia

    en.wikipedia.org/wiki/C23_(C_standard_revision)

    Add stdc_first_trailing_one*() and stdc_first_trailing_zero*() to find first trailing bit with 1 or 0 in value. [11] Add stdc_has_single_bit*() to determine if value is an exact power of 2 (return true if and only if there is a single 1 bit). [11] Add stdc_bit_floor*() to determine the largest integral power of 2 that is not greater than value ...